Finding the Fourth Proportional to 416,404.72, 624,605.46 and 100,861.12

Step by Step Solution

1. Step 1: Write the proportion equation
   416,404.72 : 624,605.46 = 100,861.12 : x
2. Step 2: Convert to fraction form
   416,404.72/624,605.46 = 100,861.12/x
3. Step 3: Cross multiply
   416,404.72x = 624,605.46 × 100,861.12
4. Step 4: Simplify right side
   416,404.72x = 62,998,406,253.72
5. Step 5: Solve for x
   x = 62,998,406,253.72/416,404.72
6. Step 6: Final answer
   x = 151,291.29